Nothing works better in your casting than having two sets of eyes that are watching your casting. Having a casting partner for the last 9 years has been invaluable. Working out problems and continue to improve my casting. It is impossible to view your casting from all angles and with a casting partner you are able to evaluate all aspects of your cast. Whereas when you are casting by yourself you are generally only looking at one parameter such as tracking, loop formation, translation, rod stoppage. With a partner you have the luxury of someone that can walk from side to side and back to front and can critique you on the spot instead of trying to remember individually what you did wrong and what you did right. Combine this with videoing a casting partner is a huge asset while the video is recording. Your partner can help direct the casting session while it’s being videoed.
In addition to the physical aspects of having someone observe your casting and comment on it, your casting partner also serves as someone that you can have extended dialogues about fly fishing all elements. It’s nice to be able to bounce questions off someone on a regular basis and discuss and dissect fly fishing.
Your casting partner does not need to be a certified instructor, just someone who is willing to work with you on a regular basis and someone who can be honest about your casting.
I would encourage anyone who is interested in improving their casting to hook up with someone on a regular basis.